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CVE-2021-45960

Published: 1/1/2022 Last updated: 5/5/2025 Reserved: 1/1/2022

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

CNA assigner: mitre (8254265b-2729-46b6-b9e3-3dfca2d5bfca) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 8.8 High CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (4)

conf-expat conf-gtk2 conf-gtk3 ocaml-expat

Products affected (1)

Product Vendor Version
n/a n/a 15.2(4)GC2

References (18)